Chirality, or stereoisomerism, is important in many aspects of chemistry and biochemistry. Which of the following is true? A drug with 4 asymmetic centers will have 4 diastereomers O More than half of all useful drugs are chiral molecules Rare drugs may have one or two asymmetric centers Drugs are always designed to avoid chirality By definition, biologically active drugs must be chiral because receptors -- to which they bind -- are themselves chiral

Answer:

I would  recommend reading the descriptions and then reading the passage/story if you have not done that yet.

The pigment umber is name after the earth where it is derived from.

Pigments are coloured substances derived from living or non-living materials.

The pigment chlorophyll is found in plants.

The name given to each pigment us derived from the source of the pigment.

The pigment umber is name after the earth where it is derived from.

Learn more about pigments at: https://brainly.com/question/794603

The increased systemic blood pressure causes a stretch of afferent arterioles, which are the small arterioles responsible for carrying blood from the glomerulus to the peritubular capillaries.

This stretching of the afferent arterioles activates mechanosensitive ion channels at the arterial wall. This in turn causes a release of vasoactive molecules, including nitric oxide, prostaglandins, and endothelin-1.

These molecules cause vasodilation of the afferent arterioles, leading to increased glomerular filtration rate. This increased filtration rate increases the amount of fluid being filtered by the glomerulus, which ultimately increases the blood pressure in the capillaries.

Additionally, the vasoactive molecules also cause vasoconstriction of the efferent arterioles, which helps to maintain the increased systemic blood pressure.

Know more about afferent arterioles here

https://brainly.com/question/29933507#

#SPJ11

Answer:

The muscles of the muscular system work with the bones of the skeletal system.

Explanation: The musculoskeletal system is what enables movement.

(I hope this helps, you can also search up the same question maybe someone also answered it.)

:)

An animal is then able to walk or run because the muscles of the muscular system work with the bones of the skeletal system. The musculoskeletal system is what enables movement.

The skeletal system of the body has been composed of the bones and cartilage and they will perform many different types of function in the body of the organism. The cartilages along with the bones form the structural framework of the body. It also helps in the performing locomotory functions of the body. The brain signals the body of an animal to move by transmitting electrical impulses through the neurons.

It has the skeletal system of the body that helps in the walking, bending, sitting and as well as other movements of he body. It has been also serves as the barrier between the outer environment and internal organs and protects them from any exertion and shock.

Therefore, An animal is then able to walk or run because the muscles of the muscular system work with the bones of the skeletal system. The musculoskeletal system is what enables movement.

Learn more about muscular system on:

https://brainly.com/question/3162365

#SPJ2

Answer:

The correct answer is - eukaryotes.

Explanation:

Eukaryotic organisms are the organisms that have membrane-bound organelles or compartments in their cells that play different types of roles in the cell such as assisting in cellular respiration, photosynthesis, packaging and modifying the proteins, and also helps in transporting them.

In archaea, bacteria and viruses lack true membrane-bound organelles in their cells and found very limited cell organelles like ribosomes and others but no membrane-bound organelles at extent of eukaryotic cells.

The given statement "To generate a knockout mouse cell line, the best strategy is to use the base excision repair pathway" is false. A knockout mouse is a genetically modified mouse that is missing one or more genes to investigate their function.

The gene that has been knocked out is called a knockout gene. Knockout mice are useful for studying the role of genes in physiology, development, and disease, as well as for validating the therapeutic potential of novel drugs. Knockout mice can be generated through various methods, including homologous recombination, gene editing using CRISPR/Cas9, and gene trapping. These methods all aim to disrupt the function of a specific gene within the mouse genome. The base excision repair (BER) pathway is one of many DNA repair pathways present in cells, which repairs DNA damage caused by the modification of a single nucleotide in the DNA chain.

Base excision repair pathway is not a strategy used to generate knockout mouse cell lines. Although it can be employed to introduce mutations into a specific gene in the mouse genome. The strategy to generate knockout mouse cell lines is homologous recombination, which is the insertion of a modified DNA sequence into the mouse genome, resulting in the disruption of a specific gene's function.

More on knockout mouse: https://brainly.com/question/32401916

#SPJ11

Answer:

More ADH will be released, which results in water being reabsorbed and small volume of concentrated urine will be produced. If a person has consumed a large volume of water and has not lost much water by sweating, then too much water might be detected in the blood plasma by the hypothalamus.

Explanation:

If too much water is reabsorbed into the blood from the material in the large intestine, it can lead to dehydration.

The large intestine is responsible for absorbing water and electrolytes from the indigestible material that remains after digestion in the small intestine. Under normal circumstances, the amount of water that is reabsorbed is carefully regulated to ensure that the body stays hydrated and that the consistency of the stool is appropriate.

However, if too much water is reabsorbed, it can lead to dehydration, which can cause a variety of symptoms and problems. These may include:

Dehydration can be caused by a variety of factors, including not drinking enough fluids, sweating excessively, or having diarrhea. It is important to drink enough fluids and replace lost electrolytes to prevent dehydration. In severe cases, dehydration may require medical treatment.

Learn more about dehydration, here:

https://brainly.com/question/12261974

#SPJ2

The primary functions of whales include feeding, reproduction, communication, and migration.

Whales are primarily filter feeders or predators, depending on the species.

Filter-feeding whales, such as baleen whales, have baleen plates in their mouths that allow them to filter out small prey, such as krill or small fish, from large volumes of water.

Predatory whales, such as toothed whales, hunt and feed on various marine organisms, including fish, squid, and marine mammals.

Reproduction is another important function for whales. Most whale species have a gestation period of several months, with females giving birth to a single calf.

The calves are nursed with milk from their mothers and rely on their care for a period of time until they become independent.

Communication is vital for whales, as they rely on vocalizations to communicate with other members of their pod.

Whales produce a variety of sounds, including songs, clicks, and whistles, which serve purposes such as mating, social interactions, and navigation.

Migration is a common behavior observed in many whale species. Whales undertake long-distance migrations, often covering thousands of kilometers, to reach feeding grounds in nutrient-rich waters or to reproduce in specific breeding areas.

These migrations are driven by seasonal changes in food availability and environmental conditions.

In summary, the primary functions of whales encompass feeding, reproduction, communication, and migration, all of which are essential for their survival and successful adaptation to their marine environments.

For more such answers on whales

https://brainly.com/question/28623065

#SPJ8

Answer: it makes up the cell or it’s the to-do of the cell kinda like coding

Explanation:

Answer: Like unicellular organisms, there are a wide range of plant and animal multicellular organisms in existence. Compared to unicellular organisms, multicellular are also more complex given that they are made up of different types of specialized cells that carry out different functions.

Explanation:

Answer:

an expenditure of energy

Explanation:

active transport is the movement of particles from a low to a high concentration. it uses energy as it goes against the concentration gradient.

Answer:

See below.

Explanation:

P (female child) = 1/2

Answer:  

1.Radiator

2.Steaming cup of hot tea

3.Ice melting

Explanation:

1.Puts warm air out at the top and draws in cooler air at the bottom.

2.The steam is showing heat being transfered into the air.

3.Heat moves to the ice from the air. This causes the melting from a solid to liquid.

Explanation:

They face limiting factors so they will either have to begin evolving to compensate for the limited resources or they will die out.

An animal cell placed in a hypotonic solution will take on water.

What is hypotonic?

Hypotonic refers to a solution with a lower concentration of solutes compared to another solution.

A hypotonic solution contains a lower concentration of solutes than the cell which is to be observed.

What is an animal cell?

Animal cells are eukaryotic cells that contain membrane-bound organelles. They also contain a nucleus that houses the cell's DNA. Animal cells vary in shape, but most are round, irregularly shaped, or flat.

What happens to animal cells when placed in a hypotonic solution?

Animal cells are generally placed in isotonic solutions. When the animal cells are placed in a hypotonic solution, they swell up as they gain water. It is important to note that animal cells do not have a cell wall like plant cells. As a result, they can not survive in a hypotonic environment since they cannot withstand the pressure caused by the extra water.

Therefore, option B is the correct answer: An animal cell placed in a hypotonic solution will take on water.

Learn more about Osmotic solutions:

https://brainly.com/question/194646

#SPJ11

About the concentration of cesium inside and outside of the cell we can conclude that the inside concentration is higher than the outside concentration.

The action potential is a brief phenomenon which depicts the fast opening and closure of voltage-dependent Na+-selective and K+-selective channels, which are necessary for the responsiveness of biomembranes. A core pore is surrounded by these and is protected by a selectivity filter made up of P-loops from every of the subunits.

Caesium is a delicate, golden-colored metal which reacts violently in water and is immediately attacked by air. Caesium compounds are most frequently used as drilling fluids. In addition, they are utilised in the production of special optical glass,  radiation monitoring apparatus, and as a catalytic promoter.

To learn more about Caesium here

brainly.com/question/23418827

#SPJ4

Answer:

Major features of a river system:

1. Source: The source of a river is its beginning. Sometimes a lake, a marsh, a bog, or a spring will serve as the source. Typically, the mountains are the source.

2. A stream or smaller river that enters a larger river is called a tributary. 
3. Valleys with a V shape can be found higher up a river's course. A small river channel and steep slopes are present. 
4. Lower down on the river's course are U-shaped valleys. More gradual and rolling slopes can be found. The river will be wider in this valley because of the wide river bed. 

5. Water cascades down from a height to create waterfalls. It is created when a river or stream rushes over a cliff or rock face that is extremely steep. 
6. As a river flows through increasingly flat terrain, it will curve, creating a meander. Given its form, it appears snake-like.

Why are wetlands and estuaries important?

1. Water Quality: Wetlands filter silt and absorb numerous pollutants in surface waters, acting as a natural water purifier. This purifying effect improves the quality of groundwater supplies in some wetland settings.

2. Wildlife Habitat: Wetlands are home to a wide variety of species of mammals, birds, reptiles, amphibians, and other animals that have evolved specifically to live in watery habitats. Wetlands are a common source of food and shelter for upland animals including deer, elk, and bears. Many migrating bird species especially depend on wetland habitat. For instance, almost 50% of the waterfowl in North America breed in prairie potholes, and wood ducks, mallards, and sandhill cranes spend the winter in bottomland woods and marshes that have been flooded in the southern United States.

3. Ecosystem: Wetland kinds that are among the most productive ecosystems on the planet are wetlands. The only other agricultural crop with the exception of sugar cane that can generate more plant material and store more energy per acre is a stand of cordgrass in a salt marsh. Plants, fish, and animals in estuaries and other downstream habitats depend on the nutrients and plant matter ejected from some wetland systems during storms.

To learn more about River Systems visit https://brainly.com/question/3599897

The location of the layer in which the proteins can be found is at the bottom of the tube, and it is the organic layer. The phenol-chloroform mixture is more dense than water, so it will settle at the bottom of the tube.

When the mixture is added to the sample containing DNA, RNA, and proteins, the DNA and RNA will be denatured and partition into the aqueous phase due to their negative charge, while the proteins will remain in the organic phase.

The organic phase is at the bottom of the tube because it is more dense than the aqueous phase, which will be located on top. Therefore, after centrifugation, the proteins can be found in the organic phase, which can be collected by pipetting or decantation.

In summary, the phenol-chloroform extraction separates DNA and RNA from proteins by partitioning them into different phases based on their solubility and charge properties. The proteins can be found in the organic phase at the bottom of the tube.

To know more about organic layer click here:

brainly.com/question/14356327

#SPJ4

It is essential for the new drug that is being designed to enter the cytoplasm of specific target cells in order to work.

Designing a new drug requires a lot of research and development in order to make sure it is effective and safe. One of the key requirements for this drug to work is that it must enter the cytoplasm of specific target cells. The cytoplasm is the fluid inside a cell where many of the cell's metabolic activities occur.There are a variety of ways that drugs can enter cells and reach their target sites, including passive diffusion, facilitated diffusion, active transport, and endocytosis.

For this particular drug, the method of entry into the cytoplasm will need to be carefully considered and determined in order to ensure that it is able to reach the target cells and exert its intended effects. Once it enters the cytoplasm, the drug can then interact with its target and bring about the desired changes.

To know more about cytoplasm visit:

https://brainly.com/question/15417320

#SPJ11

Nutrient acquisition by intracellular apicomplexan parasites: staying in for dinner is a research paper published by KJ Saliba in the international journal for parasitology on oct 2001.

The apicomplexan parasites Plasmodium, Toxoplasma, and Eimeria all have intracellular versions that are housed in parasitophorous vacuoles. The host cell, which then absorbs these substances from the extracellular milieu, provides these intracellular parasites with the nutrition they need to support their rapid pace of growth and replication.

The host cell membrane, the parasitophorous vacuole membrane, and the parasite plasma membrane are the first three membranes that solutes passing from the exterior medium to the inside of the parasite encounter. Each embodies a possible permeability barrier that needs to be either overcome or circumvented. The focus of this review is on the methods through which this happens.

To learn more about permeability visit:

https://brainly.com/question/22370062

#SPJ4

Answer:

Reproduction.

Explanation:

One piece of evidence that a virus is non-living is that it cannot reproduce on its own.

Unlike living organisms, viruses require a host cell to replicate and produce more viruses.

This dependence on a host cell for reproduction suggests that viruses are not truly alive, as they lack one of the key characteristics of living things, which is the ability to independently sustain and replicate themselves.

Aspergillus fumigatus is a species of Aspergillus that is differentiated from other Aspergillus species by its ability to produce a variety of mycotoxins and its ability to grow at higher temperatures.

It is also known for being the most common cause of aspergillosis, a group of fungal diseases caused by inhalation of Aspergillus spores. Other species of Aspergillus may have different growth patterns, produce different mycotoxins, and have varying levels of virulence, but Aspergillus fumigatus stands out as a particularly significant pathogen.
Aspergillus fumigatus is a species of fungus within the Aspergillus genus. The key differences between A. fumigatus and other Aspergillus species include its unique microscopic characteristics, growth temperature preferences, and potential health effects.

A. fumigatus produces smaller conidiophores and conidia compared to many other Aspergillus species. Additionally, it has a faster growth rate and prefers higher temperatures (optimal growth at 37°C), which makes it more adapted to the human body. This characteristic contributes to its potential to cause aspergillosis, a serious lung infection in immunocompromised individuals, which is less common in other Aspergillus species.

To know more about Aspergillus click here .

brainly.com/question/28168609

#SPJ11

Answer:

ok

Explanation:

yes

Answer:

i dont know

Explanation:

In coupled reaction, one reaction has a positive delta G while other has large negative delta G. And combining these two reaction net reaction has negative delta-G, thus proceed in desired direction.

Most of the anabolic reactions or constructive reactions in the cells are not energetically favourable that is, delta G is positive. And chemically only those reactions occur which are energetically favourable that is delta G is negative. To overcome this problem cell utilize the energy which is conserved in the form of ATP. Phosphate bonds are present in ATP are high energy bonds, when it is hydrolyze, hey will produce large amount of energy. This high energy is used by the cell to overcome from the energy requirement in the other non favourable reaction where delta G is positive. This is termed as the coupled reaction, in which one reaction has a positive delta G while other has large negative delta G. Thus, combining these two reactions the net delta-G of the reaction becomes negative and reaction moves into the desired direction.

To learn more about spontaneous reaction visit the link- https://brainly.com/question/14061406#:~:text=What%20is%20spontaneous%20reaction%3F,spontaneous%20reactions%20generate%20free%20energy.

#SPJ4

Answer:

Density independent is the correct answer

The type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.

Density-independent factors are environmental factors that affect populations regardless of their size or density. These factors can include natural disasters such as forest fires, floods, hurricanes, droughts, and other extreme weather events. Other examples of density-independent factors include habitat destruction, pollution, and climate change. In the scenario described, a forest fire destroyed an area, which can lead to the decline of both tree and bird populations. The fire could kill the trees and destroy their habitats, making it difficult for the surviving trees to grow or reproduce.

Hence, the type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.

Learn more about the density-independent factors here.

https://brainly.com/question/19277012

#SPJ7

Answer:

This is refers to as Greenstick fracture.

Explanation:

This is the type of fracture common in children less than 10 years, in which there is incomplete fracture of the bone,with ,but  the cortex  remain flexed.It is called green stick because it is analogous to the act of breaking  a branch of a tree, which is not completely broken, from the main branch.

It is usually to due to falls,and common in kids because of their soft bones which is not completely formed and therefore will not break off completely like that of adults when fractured, but only from one side only.

This adaptation is a result of an adaptation called a symbiotic relationship and resource partitioning. Specifically it is called food partitioning.

Warblers can swallow many varieties of seeds thanks to symbiotic interactions and physiological variations in their beak structures. The five distinct species may coexist in the same tree due to resource partitioning in the seeds, which also lessens competition.

What is resource partitioning?

Resource partitioning is the division of resources to prevent interspecific competition for scarce resources in an ecosystem. It is an evolutionary adaptation that promotes species coexistence in an ecological community. Resource partitioning analyses assist in assessing how the presence or absence of a species will affect that habitat's ecosystem and its ability to function.

To know more about resource partitioning visit:

https://brainly.com/question/15902942

#SPJ4

Answer:

In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. ... Leaching may also refer to the practice of applying a small amount of excess irrigation where the water has a high salt content to avoid salts from building up in the soil (salinity control).

Explanation:

Answer: ATG-GCC-TCA

Explanation: A's pair with T's, C's pair with G's. In the complementary strand simply pair any T's with A's and vice verse and any C's with G's and vice verse